3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php // Positive numbers: preg_match("/tag/","tag1,tag10,tag11,tag13,tag15,tag17,tag19,tag20,tag4,tag9,tag8,tag7,tag6,tag5,tag3,tag2,tag18,tag16,tag14,tag12",$matches); echo $matches; ?>
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Array to string conversion in /in/R05ei on line 4 Array
Output for 4.3.0 - 5.3.29
Array